class Counter:
    def __init__(self, value):
        self.value = value

    def increaseValue(self):
        self.value = self.value + 1

    def deceraseValue(self):
        self.value = self.value - 1

    def getValue(self):
        print "liczba = %s" % self.value

x = raw_input('Podaj liczbe:')


Program = Counter(int(x))


Program.increaseValue()
Program.getValue()
Program.deceraseValue()
Program.deceraseValue()
Program.getValue()